public class Application1{
    public static void main(String x[]){
	MT tele = new MT();
	SIM sim = new SIMofCM();
	sim.setNumber("13398762836");
	tele.useSIM(sim);
	tele.showMess();
	sim = new SIMofCU();
	sim.setNumber("13027639877");
	tele.useSIM(sim);
	tele.showMess();
    }
}